Allegheny County, Pennsylvania

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Allegheny is a county in Pennsylvania. It was formed in 1788 from the following county/ies: Washington/Westmoreland. The earliest land deed in Allegheny was recorded in 1788. The earliest wills begin in 1789. One can contact the register of wills at City-County Building, Pittsburgh 15219. For more information, contact the county at County Office Bldg., 542 Forbes Ave., Pittsburgh 15219. On the attached map, Allegheny is located at A5.

For information about the state of Pennsylvania see Pennsylvania Family History Research.

The Counties and County Seats of Pennsylvania


Counties of Pennsylvania

AdamsAlleghenyArmstrongBeaverBedfordBerksBlairBradfordBucksButlerCambriaCameronCarbonCentreChesterClarionClearfieldClintonColumbiaCrawfordCumberlandDauphinDelawareElkErieFayetteForestFranklinFultonGreeneHuntingdonIndianaJeffersonJuniataLackawannaLancasterLawrenceLebanonLehighLuzerneLycomingMcKeanMercerMifflinMonroeMontgomeryMontourNorthamptonNorthumberlandPerryPhiladelphiaPikePotterSchuylkillSnyderSomersetSullivanSusquehannaTiogaUnionVenangoWarrenWashingtonWayneWestmorelandWyomingYork

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